Open Bug 1688466 Opened 5 years ago Updated 29 days ago

When enabling Title Bar clicks near top and left of window are ignored

Categories

(Core :: Widget: Gtk, defect, P3)

defect

Tracking

()

UNCONFIRMED

People

(Reporter: subdiff, Unassigned, NeedInfo)

References

(Blocks 1 open bug)

Details

(Whiteboard: gtk-severity-sweep-2026-10)

Attachments

(2 files)

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36

Steps to reproduce:

Enable Title Bar on X11 with window manager KWinFT or KWin.

Actual results:

Clicks near top and left of window are ignored.

See bullet point 3 in https://gitlab.com/kwinft/kwinft/-/issues/121#note_492431910.

Expected results:

Clicks register.

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Component: Untriaged → Widget: Gtk
Product: Firefox → Core

The windows affected by this issue are those which are not maximized at the time of enabling the title bar. Windows opened after changing this setting are not affected either. If I disable X11 compositing, windows affected by the issue stay affected until the title bar is disabled again, but further attempts at enabling it do not trigger the issue.

Yes, I understand, there's wrong titlebar offset calculated from the missing system titlebar, perhaps we get wrong decoration sizes. This should be fixed by Plasma 5.18, see https://blog.vladzahorodnii.com/2020/07/

So which KDE/Plasma version do you run?
Thanks.

Flags: needinfo?(subdiff)
Priority: -- → P3

This bug is still reproducible with Firefox 88.0.1 running on neon unstable, a distro based on Ubuntu 20.04 that runs master branch of KDE software.

The title is wrong. All off the space between the title bar and the search field becomes "ignored" in firefox and thunderbird ver. 90.0a1.
Happens on both X11 and Wayland.

(In reply to Martin Stránský [:stransky] (ni? me) from comment #3)

Yes, I understand, there's wrong titlebar offset calculated from the missing system titlebar, perhaps we get wrong decoration sizes. This should be fixed by Plasma 5.18, see https://blog.vladzahorodnii.com/2020/07/

So which KDE/Plasma version do you run?
Thanks.

KDE Plasma Version: 5.21.90
KDE Frameworks Version: 5.82.0

Do note that in the blog you linked the author has Shade and Context help in his SSD toolbar, but on CSD they're missing. I think applications don't expect more then 3 buttons there although they can be shown. Either plasma or core needs to look out for more buttons and add them accordingly.

Attached image fff.png —
Severity: -- → S3
Whiteboard: gtk-severity-sweep-2026-10
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